River Review!

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Across
  1. 6. a place where living and non-living parts work together
  2. 7. scientists need this to support their ideas
  3. 8. your amazing teacher's name
  4. 9. when two things affect each other
Down
  1. 1. a big, round animal that floats in rivers
  2. 2. your teacher's favorite music group
  3. 3. a place where animals, like frogs living in mud or fish living in water
  4. 4. when living and non-living things need each other, they __________ on each other
  5. 5. something that living things need to survive
  6. 6. a fish that looks like a snake